init

backend/app/Models/Concerns/BelongsToTenant.php

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+<?php
+
+declare(strict_types=1);
+
+namespace App\Models\Concerns;
+
+use App\Support\TenantContext;
+use Illuminate\Database\Eloquent\Builder;
+use Illuminate\Database\Eloquent\Model;
+
+/**
+ * 业务模型使用此 Trait 后，查询自动限定当前租户，创建时写入 tenant_code。
+ * withoutGlobalScope('tenant') 只允许出现在平台级管理中，并在调用处说明原因。
+ */
+trait BelongsToTenant
+{
+    public static function bootBelongsToTenant(): void
+    {
+        static::addGlobalScope('tenant', function (Builder $builder): void {
+            $builder->where(
+                $builder->getModel()->qualifyColumn('tenant_code'),
+                app(TenantContext::class)->code(),
+            );
+        });
+
+        static::creating(function (Model $model): void {
+            $model->setAttribute('tenant_code', app(TenantContext::class)->code());
+        });
+
+        static::updating(function (Model $model): void {
+            if ($model->isDirty('tenant_code')) {
+                $model->setAttribute('tenant_code', $model->getOriginal('tenant_code'));
+            }
+        });
+    }
+}